Machine for operating upon shoe parts



June 8, 1937. H. WARREN 2,032,861

7 MACHINE FOR OPERATING UPON SHOE PARTS FiledFeb. 10, 1936 4 Sheets-Sheet l Julie 8, 1937. H WARREN 2,082,861

MACHINE FOR OPERATING UPON SHOE PARTS Filed Feb. 10, 1936 4 Sheets-Sheet 2 Fig. 2.

June 8, 1937. H. WARREN 2,082,861

MACHINEFOB OPERATING UPON SHOE PARTS Filed Feb. 10, 1956 4 Sheets-Sheet s 56 Fig.5.

155 1 0 P1 2 148 174 165 166 II y/ /l 150 June 8, 1937. H, W EN 2,082,861

- MACHINE FOR OPERATING UPON SHOE PARTS Filed Feb. 10, 1936 4 Sheets-Sheet 4 WvE/vTU/ a WWW i3? Z111 Patented June 8, 1937 UNITED STATES MACHINE FOR. OPERATING UPON SHOE PARTS Harold Warren, Swampscott, Mass., assignor to United Shoe Machinery Corporation, Paterson, N. J a corporation of New Jersey Application February 10, 1936, Serial No. 63,044

19 Claims.

This invention relates to machines for operating upon shoe parts, and is herein illustrated as embodied in a machine for operating upon counters. 7

One type of counter which has heretofore been used extensively in the manufacture of shoes is one which is provided with lips extending outwardly at the ends of the flanged portions of the counter and adapted when in position in a shoe to extend along the rib of the insole.

It is an object of the present invention to provide an improved machine which is particularly adapted for forming lips on the counters of the type referred to. To this end, and as shown, the invention provides a machine for operating upon counters having inturned flanges which has a support for the heel portion of the counter, a separate support for the flange at the wing portions of the counter, and a knife movable heightwise of the supports for slitting the flange at opposite sides of the counter together with Wipers arranged to bend the end portions of the flanges outwardly to form lips. Preferably and as illustrated, the knife and flange support are adjustable together relatively to the main support so that the knife can be readily positioned tofrom the slits at pre-determined distances from the heel end of the counter. Preferably too, the work supports and knife are pivotally mounted upon the frame of the machine and are arranged, upon a slight initial manual movement of the support about its pivot, to be moved automatically toward and then away from operative position relatively to power operated means for cau 'sing operation of the knife. This construction facilitates the presentation of counters to the machine and removal of the same after an opera-- tion has been performed.

These and other features of the invention are disclosed in the accompanying drawings, are described in the following detailed specification, and will be pointed out in the claims.

In the drawings,

Fig. 1 is a side elevation of a machine for oper- 45 ating upon counters constituting one embodiment of my invention;

Fig. 2 is a plan View of the machine;

Fig. 3 is a view partly in section showing the knife and associated mechanisms;

Fig. 4 represents a cross section through the driving cam and the clutch mechanism;

Fig. 5 is a detailed view partly in section illustrating the operation of the marking and punching mechanisms upon a counter; and

Fig. 6 is a perspective view of a counter which has been operated upon by the machine.

The machine is constructed and arranged for operation upon counters such as the counter l0, shown in Fig. 6, and is provide-d with instrumentalities for slitting flange portions [2 of such a counter to form lips I4, for turning back the lips, for punching jig holes such as jig holes I6 in the flanges of the counter, and for marking the counter, as indicated by reference characters l8 and IS.

The machine comprises a column 20 which supports a head 22 upon which is pivotally mounted, on a shaft, a T-shaped bracket 26 adapted to carry a work support 28 and various tools for operating upon counter blanks.

As shown in Figs. 1 and 2, the support 28 comprises a heel shaped block which is secured to the bracket 26 by screws 30 and which is arranged to support a counter with the wing portions thereof extending forwardly and downwardly and the rear portion of the flange of the counter resting upon the upper surface of the support. The forward or wing portions of the flanges of the counters are supported by an auxiliary work support comprising a vertically extending plate 32 mounted upon a dovetailed slide 34 positioned in a groove in the upper portion of the bracket 26, the plate being secured to the slide by means of screws 36. The slide 34 is readily adjustable relatively to the support 28 for different lengths of counters by means of a thumb screw 38 which carries a collar 40 having a spiral groove 42 positioned therein and arranged to receive the end of a screw 44 which extends downwardly through an elongated slot 46 from the dovetailed slide 24.

,By rotating the thumb screw 38 the screw 44 and consequently the slide 34 are moved inwardly or outwardly, as desired. The settings for various sizes of counters are indicated by the markings 48 on the thumb screw 38. A springpressed detent 5|] is adapted to engage with one or another of the recesses 52 upon the thumb screw to hold the slide in its adjusted position.

The upper end of the plate 32 has spaced extensions 54 which form guides for a knife 56 carried upon a horizontal shaft 51 which passes between the guides. The shaft 51 has a shoulder 58, Fig. 1, adapted to bear against the forward faces of the guides and the knife is forced against opposite faces of the guides by a nut 59 engaging a plate 60 on the shaft, there being a spacing member 62 between the plate and the knife. The knife 56 and the plate 60 are rigidly secured together by a screw 63 and spacing collar 64. The shaft 51 is slidably mounted in a block 65 carried at the end of a plunger 66 located centrally of the support 28 and normally forced upwardly by a spring 61. Upward movement of the shaft 51, and consequently of the knife, is limited by a cross-bar 68 secured to the upper ends of the extensions 54 by screws 69. Thus it is to be noted that the knife is mounted for movement heightwise of the counter support 32 but at the same time is adjustable lengthwise of the support 28 with the slide 24. When a counter is in position upon the supports 28 and 32 with the slide 34 properly adjusted for size the knife will be so located as to cut slits in the flanges of the wings of the counter at a predetermined distance from the rear end of the counter.

In order to hold the counter flanges in position during the knife stroke there are provided two holddown fingers which are mounted upon shafts 1I located upon opposite sides of the work 10 support 32 and rotatably carried by ears 12 upon the bracket 26 adjacent to the support 28. The shafts 1I also pass through ears 14 forming extensions of the slide 34. Each of the fingers 10 is slidably mounted upon a shaft 1I, positioned between a pair of the ears 14 for movement with the slide 34, and is secured to the shaft II for rotation therewith by a key 16. The fingers 10 are provided with Work-engaging extensions 18 and 80 which respectively engage the curved side portions of a counter and the flange portions of the counter located upon the work support 32. The extensions 18 project beyond the face of the support 32 to provide abutments about which the ends of the flange of the counter can be bent as 5 will later be described. Movements of the fingers 10 are controlled by downwardly extending members 82, fixedly secured to the shafts 1|, and adapted to engage cam blocks 84 located near the forward edge portion of the head 22. The fingers 10 are normally forced toward counter engaging position by a spring 86, extending through a tube 80 carried by the bracket 26, the ends of the spring being positioned on; spring perches 90 on the members 82. When the bracket 26 is rotated outwardly into counter receiving position as shown in Fig. 1 the fingers 10 are moved into inoperative position by the operation of I the blocks 84 in rotating the members 82 inwardly. When the bracket 26 is moved inwardly toward operative position the blocks 84 permit movement of the members 82 outwardly and the spring 86 forces the fingers 10 into engagement with the work.

In order to form the lips of the counter after the knife 56 has slit'the flanges thereof I have provided two wipers 92 mounted upon a pivot 94 carried by an extension 95 of the plate 32, the wipers being normally forced toward each other by a spring 96 extending between studs 98 so that the ends of the wipers are normally held out of engagement with the flanges of a counter positioned upon the support 32. The end portions of the wipers have laterally extending work engaging portions I00 adapted to engage counter flange portions I02 (Fig. 3) of a counter I04 which lie beyond the knife after the slitting operation. In order to cause operation of the wipers there is provided a cam I05 adapted to contact with the studs 98 on the wiper arms after the knife has slit the flanges of the blank. The

50 cam I05 is an extension of the plate which is movable with the knife 56, and the cam is so positioned that after the knife in its downward movement has slit the flanges'of the blank the cam will be effective to move the wipers outwardly 5 to engage the flange portions of the counters beyond the slits and bend them upwardly.

The mechanism for marking and punching the counter will now be described. This mechanism comprises a plurality of marking disks I06 7 mounted in slits I08 in the block (Fig. 5), the disks being carried by a spindle I I0 which extends laterally of the block and is secured in position by a nut H2. The spindle H0 is provided with teeth II4 which are adapted to engage a rack I I6 formed on a flattened end II1 of the shaft 51.

The disks bear number stamps which correspond to the members marked on the thumb wheel 38, and the parts are so arranged that as the slide 34 is set for a given size of counter the shaft 51 will, through the rack II6, rotate the disks I06 so that a corresponding number stamp will be in position at the lower part of the block 65 for operation upon the flange of the counter.

The means for punching jig holes in the counter flanges comprises punches I I8 and I I9 mounted in the block 65 upon opposite sides of the marking wheels I06. The end I20 of the punch I I8 is received in a groove I22 in an enlarged portion I24 of the spindle H0 and thus serves to prevent lateral movement of the spindle.

The means for marking the center line of the counter comprises a corrugated strip of metal I25 which is positioned between the two marking disks I06 along the center line of the counter support 28.

Operation of the various tools above described upon a counter blank is accomplished by means of a power operated hammer I26 carried by a lever I28 pivoted at I30 upon a bracket I32 extending upwardly from the head 22, the lever having a roll I34 positioned in a cam track I36 of a cam I30. The cam causes a downward stroke of a hammer to engage a projection I40 on the block 65, forcing the block downwardly against the pressure of the spring 61 when the support 28 has been moved inwardly into operative position in alinement with the hammer. thus effecting simultaneously operation of the various tools carried by the block.

The cam I38 is driven by means of an electric motor I42 carried by the head 22 and having a driving pinion I44 mounted in bearings I46 and continuously in mesh with the teeth of a gear I48, the cam being operatively connected to the gear through a clutch which will now be described. The gear I48 is mounted upon a. sleeve I50 which is carried by a shaft I52 mounted in bearings I54 upon opposite sides of the head 22, the gear and sleeve and shaft being secured together by a pin I56. A second sleeve I58 is slidably mounted upon the sleeve I50 and is connected with the gear I48 by pins I60 carried by the gear I48 and extending into openings I62 in the sleeve I58. The sleeve is normally forced outwardly away from the side of the gear I 48 by springs I 64 mounted in openings I62 and bearing upon the ends of the pins I60. Outward movement of the sleeve I58 is limited by a projection I66 on the shaft I50. The outer face of the sleeve I58 is provided with a plurality of teeth I68 adapted to engage corresponding teeth I10 in the face of a sleeve I12 loosely mounted on the sleeve I50 and bolted to the cam I38. The cam I 38 which is also mounted on a shaft I52 is normally forced outwardly by a spring I14 positioned between the cam and the end of the sleeve I50 so that the teeth I10 and I68 will be held out of mesh. When the cam is forced inwardly toward the gear I48 against the pressure of the spring I14 the teeth I 10 will mesh with the teeth I68, thus completing operative connection between the motor and the cam, the springs I64 providing suflicient yield to avoid clashing of the teeth as the meshing occurs.

In order that the clutch may be operated automatically upon initial manual movement of the counter support 28 about its pivot, there is a connection for moving the sleeve I12 into meshing position. This connection comprises a link I16 one end of which is mounted upon a pin I18 carried by a vertical projection I of the bracket 26 and the other end of which has a slot I82 through which the shaft I52 extends. The inner side of the link adjacent to the slot is beveled as shown at I84 so that when the link is in position to the left, as shown in Fig. 1, it will receive a correspondingly beveled collar I86 on the shaft I52 adjacent to the cam I38. In this position the clutch parts I58 and I10 will be out of engagement and the cam I38 will be stationary. However, when the link I 16 is moved to the right into the position shown in Fig. 2 the collar I86 will ride up on the beveled portion I84, lateralmovement of the link being prevented by engagement with the bearing I54. The collar I86 thus forces the cam I38 and the clutch part I12 to the right against the pressure of the spring I14 effecting engagement of the teeth I10 and I68 in the manner previously described.

The link I18 carries a cam roll I88 arranged to engage acam track I90 in the outer face of the cam I38, the arrangement being such that after the clutch has been thrown in, the cam operates to. reciprocate the link I16 with the result that the bracket 26 is moved inwardly about its pivot to bring the block I40 into operative position beneath the hammer I26 and then outwardly to itsoriginal position after an operation of the tools/has been performed.

In the operation of the machine, a counter is placed upon the support 28 with the rear flange portions resting upon the top of the support and with the wing flange portions resting upon the auxiliary support 32, and the bracket is rotated manually through a small angle about its pivot 24 by exerting pressure upon the back of the counter. This movement causes rotation of the fingers 10 to grip and hold the counter upon the Work supports 28 and 32, and to move the link I16 to cause inward movement of the sleeve I12 thereby to effect engagement of the clutch parts, after which the cam I38 automatically causes movement of the counter support about its pivot to bring the support into operative position relatively to the'hammer I26. Downward movement of the block I40 under action of the hammer causes the plunger 66 to move downwardly producing punching operations upon the flange of the counter, to stamp a size marking thereon, and to form an indentation to indicate the center line of the counter, as shown in Fig. 6. At the same time'the knife 56 is brought down to slit the forward wing portions of the flanges "of the counter, and after the knife passes through the flanges, the wipers 92 bend back the end portions I4. of the flange. After the operation of the various tools has been effected the cam I38 causes the link to be thrown outwardly and moves the bracket 26"about its pivot into its original position and at the same time the fingers 10 are withdrawn so that the counter can readily be removed from the support 28.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the UnitedStates is:

1. A machine for operating upon counters having inturned flanges comprising a' support for the rear portion of a counter to be operated upon, a separate support for the ends of the flange of the counter mounted for movement relatively to the first-mentioned support to determine the distance between the supports in accordance with the length of the counter, a knife movable heightwise of the separate support for slitting the flange, and a member movable after the flange has been slit to bend a portion of the flange outwardly to form a lip.

2. A machine for operating upon counters having inturned flanges, comprising a support for the flange of a counter to be operated upon, a knife mounted for movement heightwise of the support for slitting the flange at opposite sides of the counter near the ends thereof, a pair of fingers each having a flange-engaging portion for holding the counter upon the support and a laterally extending portion projecting beyond the support to engage the sides of the counter, and wiper members located between the fingers and movable to bend the flange portions at the ends of the counter outwardly to form lips.

3. A machine for operating upon counters having inturned flanges, comprising a support for the rear portion of a counter to be operated upon, an auxiliary support for the flange near the end portions of the counter, a knife movable heightwise of the auxiliary support for slitting the flange, and means for mounting the auxiliary support and knife for movement together relatively to the first-mentioned support.

4. A machine for operating upon counters comprising a work support, a plunger movable heightwise of the work support, a slide movable laterally of the work support, a knife carrier movable laterally with the slide and heightwise with the plunger, an auxiliary work support upon the slide, knife guide members carried by the slide adjacent to the auxiliary work support, a knife secured to the carrier and mounted for movement along the guide membersfand means for causing movement of the plunger heightwise of the work supports.

5. A machine for operating upon counters comprising a work support, a spring pressed plunger movable heightwise of the support, a knife carrier supported by th'plunger and mounted for movement laterally of the work support, a slide mounted for movement laterally of the work support, an auxiliary work support mounted upon the slide, a knife secured to the carrier, projections extending from the auxiliary work support to act as guides for the knife, and means for slidably securing the knife carrier to the guides.

6, A machine for operating upon counters comprising-a heel shaped work support, a slide movable laterally of the support, an auxiliary support mounted upon the slide, guide members extending from the auxiliary support, a knife mounted for movement heightwise of the auxiliary support along the guides, fingers operable to hold a counter in position upon the support with the flange portions of the wings of the counter located upon the auxiliary support, means for causing an operation of the knife to slit the flange of the counter, wipers movable to bend portions of the flanges to form lips, and a cam movable with the knife to cause operation of the wipers upon the work.

7. A machine for operating upon counters comprising a frame, a work support secured to the frame, a slide mounted upon the frame for movement laterally of the support, an auxiliary work support carried bythe slide, a plunger mounted for movement heightwise of the frame, a shaft slidably mounted in the plunger, a knife secured to one end of the shaft, a connection between the slide andthe shaft comprising a slotted member through which the shaft passes, means for securing the shaft to the slotted member so that the knife will move laterally with the slide, and means for depressing the plunger to cause an Cal operation of the knife upon a counter positioned upon the work supports.

8. A machine for operating upon counters comprising a frame, a work support mounted upon the frame for supporting the rear portion of a counter, a slide carried by the frame, an auxiliary work support upon the slide for supporting the wing portions of the counter, a plunger mounted for movement heightwise of the frame and carrying a plurality of marking devices, a knife carrier mounted upon the plunger for movement with the slide, a knife mounted upon the carrier, and means for selectively locating in operative position relative to the first-mentioned work support one or another of the marking devices in accordance with the position of the knife.

9. A machine for operating upon counters comprising a frame, a main work support secured to the frame, a slide mounted upon the frame for movement laterally of the work support, an auxiliary work support mounted upon the slide, a plunger mounted for movement heightwise of the frame, a disk carried by the plunger and bearing a plurality of stamps about' its periphery, a shaft extending laterally of the plunger and slidably mounted therein, a knife carried by the shaft and positioned in alinement with an end of the auxiliary work support, a rack upon one end of the shaft for rotating the disk, and means for causing lateral movement of the slide to locate the knife in operative position relatively to the main work support and to rotate the disk to present a stamp in operative position in accordance with the position of the knife.

10. A machine for operating upon counters comprising a frame, a bracket pivotally mounted upon the frame, a counter support carried by the bracket, a tool mounted upon the bracket for reciprocation heightwise thereof, and power-operated means for causing reciprocation of the tool upon movement of the bracket about its pivot.

11. A machine for operating upon counters comprising a frame, a lever mounted for oscillation relatively to the frame, a bracket pivotally mounted upon the frame, a work support on the bracket, a plunger mounted for movement heightwise of the work support, and means for moving the bracket angularly into and out of operative position with the plunger in alinement with the lever.

12. A machine for operating upon counters comprising a work support, a tool mounted for movement heightwise of the support, power operated means for forcing the tool toward the support, and means initially under manual control for automatically moving the support and tool into and out of position in operative relation to the power-operated means.

13. A machine for operating on counters comprising a frame, a work support pivotally mounted upon the frame, a knife mounted for movement heightwise of the support, means for positioning the knife laterally of the support, and automatic means for causing operation of the knife initiated by rotation of the work support about its pivot.

14. A machine for operating upon counters comprising a frame, a work support pivotally mounted on the frame, a tool carrier mounted for movement heightwise of the work support, an oscillating lever for causing an operation of the tool carrier, power means, a cam arranged to be operated by the power means, a link operatively connecting the work support and the cam, a clutch between the cam and the power means, and means for controlling the clutch in response to a preliminary movement of the link.

15. A machine for operating upon counters comprising a frame, a work support pivotally mounted upon the frame, an oscillating lever, means for moving the work support into and out of operative position relatively to an end of the lever comprising a link connected to the work support, a cam for driving the link, power means, a clutch for operatively connecting the cam and the power means, and means operable upon initial movement of the work support about its pivot to cause operation of the clutch.

16. A machine for operating upon counters comprising a frame, a bracket pivotally mounted. upon the frame, a work support carried by the bracket, a tool carrier mounted for movement heightwise of the work support, a lever for causing an operative movement of the tool carrier, and means for automatically moving the bracket about its pivot to present the tool carrier in operative position relatively to the lever.

17. A machine for operating upon counters comprising a frame, a work support pivotally mounted upon the frame, a tool mounted for movement heightwise of the support, power means for causing an operation of the tool upon the work, means for rotating the work support about its pivot into and out of operative relation relatively to the power means comprising a link pivotally secured to the work support, a cam for reciprocating the link, clutch members for connecting the cam to a source of power, and means operable upon manually controlled movement of the work support about its pivot for causing engagement of the clutch members.

18. In a machine for operating upon counters, a frame, a work support pivotally mounted upon the frame, and means for rotating the work support about its pivot comprising a link one end of which is connected to the work support, a shaft connected to a source of power, one end of the link having an elongated slot through which the shaft passes, a cam loosely mounted upon the shaft, a wedge member on the shaft and adjacent to the cam, the link having a recess adjacent to the slotted end thereof adapted to receive the wedge member, a clutch member secured to the cam, a second clutch member secured to the shaft for rotation therewith, a spring normally operative to force the cam and first-mentioned clutch member outwardly along the shaft, and a cam roll carried by the link and adapted to .engage the cam.

19. In a machine for operating upon counters, comprising a frame, a work support pivotally mounted upon the frame, means for rotating the work support about its pivot comprising a shaft, clutch members loosely mounted upon the shaft, a beveled collar surrounding the shaft, a link one end of which is connected to the support and the other end of which has an elongated slot through which the shaft extends, the link having a recess near one end of the slot adapted to receive the collar, a spring for forcing the clutch members apart when the boss and recesses are in alinement, and a cam associated with one of the clutch members for reciprocating the link when the clutch members are in engagement.

HAROLD WARREN. 

